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A woman at a point on the shore of a circular lake with radius 2 miles wants to arrive on the exact opposite side of the lake in the shortest possible time

A woman at a point on the shore of a circular lake with radius 2 miles wants to arrive on the exact opposite side of the lake in the shortest possible time. She can walk 4mph and row a boat 2mph. How should she proceed?
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A woman at a point on the shore of a circular lake with radius 2 miles wants to arrive on the exact opposite side of the lake in the shortest possible time. She can walk 4mph and row a boat 2mph. How should she proceed? : Find the diameter (rowing directly across the lake) 2 * 2 = 4 mi Rowing time = {{{4/2}}} = 2 hrs; rowing : Find half the circumference: .5(4*pi) = 6.283 mi Walking time = {{{6.283/4}}} = 1.57 hrs, walking
answered by: ladylake5
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